I have successfully upgraded from 6.1-15047 Update 2 to 6.1.1-15101 Update 1 using DS3615xs 6.1 Jun's Mod V1.02-alpha. First, I tried to do a strait upgrade via GUI, it failed. I then rebooted manually and used force install. I was greeted with DSM migration screen, I clicked on Synology's Download Center to download and install the newest version of DSM. https://www.synology.com/_images/tutori ... ard_91.png the system performed upgrade and rebooted fine. After reboot I performed another update from 6.1.1-15101 to 6.1.1-15101 Update 1 via GUI. System is working fine so far.
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when I try that I get
failed to format disk (35)